genetic diversity 中文意思是什麼

genetic diversity 解釋
遺傳多樣性
  • genetic : adj. 1. 遺傳（學）上的。2. 發生的，發展的；創始的。adv. -ically
  • diversity : n. 1. 不同，異樣，差異。2. 繁多，多種，多樣，駁雜，參差。
  1. Endangered abies yuanbaoshanensis will probably have been extinct, so it very necessary to studying its genetic diversity with a proper way in order to save this key group of biological diversity in china

    元寶山冷杉是具有重大科學價值的類群，目前它卻處于高度瀕危極待保護狀態，要有效保護和挽救這一作為我國生物多樣性的關鍵類群，選擇合適的方法來研究其遺傳多樣性是非常必要的。
  2. The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu

    另外，通過rapd資料的聚類分析及相關性分析研究，發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子（主要是土壤因子）相關，其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量（ w ） 、鉀鈉離子濃度（ k + na ）和氯離子濃度（ cl ）呈顯著的正相關（ p 0 . 05 ） ，還與土壤中有機質（ som ） 、全氮（ nt ）和全磷（ pt ）含量呈顯著的負相關；同時，角果藜種群的遺傳多樣性水平與土壤中有機質（ som ）和全氮（ nt ）含量呈顯著的正相關，而與co _ 3 ~ （ 2 - ）濃度呈顯著的負相關；除此之外，其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著（卜0 . 05 ） 。
  3. It was suggested that eric - pcr could substitute for rapd in research related to the genetic identification and genetic diversity in auricularia and other edible and medicinal fungi : 2 to a certain extent, genetic differences among auricularia strains tested in this study did not have necessary relativity with their geographical origins respectively ; 3 in this study, genetic diversity in a. polytricha was higher than that in a. auricula : 4 in this study, a. fuscosuccinea had a higher homology to a. auricula than to a. polytricha ; 5 morphological characteristics validated the results from eric - pcr and provided a potential explanation for the higher similarity coefficient between a. auricular and a. fuscosuccinea ; 6 southern hybridization was employed by choosing a strain from a. auricula as a probe which hybridized with a. auricula and a. fuscosuccinea except a. polytricha, further confirming the veracity of the results from eric - pcr ; 7 in this study, isozyme analysis could not cluster the 7 strains from three auricularia species to different groups efficiently ; 8 2 strains from two auricularia species revealed high conservative degree and the restriction fragment patterns by 4 kinds of restricted enzymes showed no diversity

    本研究中，木耳屬2個種的2個菌株在its區域表現出較高的保守性， 4種限制型內切酶的酶切圖譜沒有顯示出多態性；增加內切酶種類及供試菌株數量，有可能獲得具有多態性的限制性內切酶酶切圖譜； 9本實驗中， its區域的真菌特異性引物與真核生物通用引物對于擴增效果無較大差異，擴增片段長度均為650bp左右； 10根據形態學實驗、 eric - pcr實驗以及southern雜交實驗的結果分析，紫木木耳屬種質資源的遺傳鑒定和遺傳多樣性評價耳極有可能是毛木耳種的一個變種; n .本研究中所用的gutc法是一種適用於木耳屬菌株基因組洲a快速提取的方法; 12 .傳統的形態學分類法和現代的分子生物學分類法，兩者的關系是相輔相成，互為驗證
  4. But up to now, the genetic diversity of great bustard in china is not reported in the world

    但到目前為止，國際上關于中國境內的大鴇遺傳多樣性的研究一直未見報道。
  5. Three individuals, c9904, xfi9915 and xf ] 9933, were found with more genetic diversity in current study, so it will be better to offer more copulation chance to these individuals in captive breed plan

    在飼養種群的人工選擇交配中應增加c9904 ， xf _ 19915和xf _ 19933個體與其他鱷進行交配的機會。
  6. Two captive populations could n ' t be defined as separate evolutionary significant units ( esus ) because of lacking of genetic divergence between them, and should be considered as a single esu in the conservation of the species. by comparing the sequences of control region of mitochondrial dna from three species of crocodiles, it is revealed that the smallest genetic diversity exists between alligator sinensis and alligator mississipiensis. a portion of mitochondrial nd4 and cytochrome b gene of 3 species of crocodilian was sequenced

    百年來關于揚子鱷的分類地位存在著很多爭議，本文利用測得的揚子鱷（ alligatorsinensis ） 、暹羅鱷（ crocodlylussiamensis ）和灣鱷（ crocodylusporosus ）的mtdnand4和cytb基因序列，以及從genbank中獲得密西西比鱷、凱門鱷和海龜（ cheloniamydas ）的nd4基因和cytb基因相應片段，構建以海龜為外群的系統進化樹。
  7. Because humans have been around for a relatively short time by evolutionary standards, scientists say that there is not enough genetic diversity in humans to allow us to be divided into neat, racial cubbyholes or subspecies.

    因為就進化的標準來說，人類的存在相對較短，因此科學家認為，人類的基因不夠的多樣化，還不足以劃為純粹的種族分支或亞種。
  8. " the behaviours that we observe will impact upon the genetic diversity of fur seal populations and may have helped them recover so successfully from near extinction only 100 years ago, " said hoffman

    霍夫曼說： 「我們觀察到的海狗行為將影響海狗基因的多樣性，這也可能是它們在100年前瀕臨滅絕又重新繁盛的原因。
  9. Studies on evaluation of the genetic diversity of core collection of common wild rice oryza rufipogon griff. and asian cultivated rice oryza sativa l

    普通野生稻和亞洲栽培稻核心種質遺傳多樣性的檢測研究
  10. Cluster analysis by upgma methods indicated that these five stocks might be divided into three clusters. results of rapd a nalysis suggested that extensive genetic diversity was detected in this species and the genetic divergence among stocks was relatively high ; upgma phylogenetic tree showed there existed three geographic populations of p. polyactis in the yellow sea and the east china sea, which supported the previous conclusion by morphological and ecological methods. part two : the genetic diversity between trichiurus lepturus and eupleurogrammus muticus random amplified polymorphic dna ( rapd ) technique was applied to 12 individuals from each species of the hairtail fishes trichiurus lepturus and eupleurogrammus muticus collected from the yellow sea

    50一2 . 44 ） ，群體內和群體間的遺傳變異比例分別為69 %和31 % ;群體間的平均遺傳相似度和遺傳距離分別為0 . 9139和o . q861 ;用非加權配對算數平均法（ unweightedpair - groupmethodofari山m七tiome即s ， upgma ）聚類分析的結果表明，所分析的5個群體可被分為3個地理群系，從分子水平上支持了過去有關學者把黃海和東海的小黃魚劃分為北中南3個地理群系的觀點。
  11. Therefore, issr molecular markers are more suited than rapd molecular markers when testing the genetic diversity of ginkgo populations and determining the genetic relationship of among populations or among individuals which are much similar hereditarily

    因此，在研究親緣關系非常近的銀杏物種的遺傳多樣性並試圖確定群體間或個體間的遺傳關系時， issr分子標記技術比rapd分子標記技術更為合適。
  12. The results show that the genetic diversity of filial generations is higher than self - bred progeny ’ s ， the hybrid vigor has manifested at metabolization level 。 the proportion of polymorphic loci ( p. 99 ) in f1 generations was 30. 77 - 36. 36 % ， the mean observed heterozygosity ( ho ) of jmcf （ japanese male chinese female ） was the highest with 0. 1727, the rest populations were ： jfcm （ japanese female chinese male ） 0. 1536 、 cp 0. 1273 and jp 0. 1055 ， the mean effective number of allels per locus in f1 generations ： cp ’ s was the highest with 1. 7318 ， jp ’ s was the lowest with 1. 6718 ， the filial generations ’ values were in the midle of the cp ’ s and jp ’ s and between them there was no brightly difference, with 1. 6955 ( jfp ) and 1. 6927 ( jmp )

    各組的平均雜合度預期值也表現出該趨勢，即：日自交組最低，為0 . 1786 ，日雄中雌雜交組的平均雜合度最高，為0 . 1964 ，日雌中雄雜交組和中自交組分別是0 . 1891和0 . 1865 。 hardy - weinberg平衡下遺傳偏離指數也是雜交組的小於自交組的，平均每個位點的等位基因有效數目中自交組最高為1 . 7318 ，日自交組最低為1 . 6718 ，兩雜交組群體的這一指數相差不多，分別是1 . 6955和1 . 6927 ，位於兩親本的中間水平。
  13. The genetic diversity of hydrophilous ornamental plants in chongqing and their application : a preliminary review

    重慶地區水生觀賞植物資源多樣性及其利用初探
  14. Genetic diversity and phylogeny of 55 slow - growing rhizobia isolated from peanut ( arachis hypogaea ) in china were determined by analysis of host - plant range, phynotype, 16s rrna rflp, 16s rrna sequence, 16s - 23s igs rflp, rapd, rep - pcr, dna - dna hybridization homology. at the same time, the competitive nodulation capacity of rhizobia, effect of host plants and soil ph on the rhizobia were determined for screening and improvement of high effective rhizobium inoculant

    本研究採用宿主范圍試驗、表型性狀測定、 16srrna - rflp 、 16srrna序列分析、 16s - 23srdnaigsrflp分析、 rapd分析、 rep - pcr分析和dna - dna同源性分析等技術系統研究了從我國不同地域分離的55株花生根瘤菌的遺傳多樣性及其在根瘤菌系統發育中的地位和相互關系。
  15. As analyzed, ( 1 ) the rapd technique is highly sensitive to investigating genetic diversity in t. lepturus and e. muticus. t. lepturus exhibits lower polymorphism and genetic diversity than e. muticus ; ( 2 ) according to the analysis of the partial mitochondrial 16s rrna gene sequences, a very low intraspecific variation and considerably high divergence among species were found, which reveals a dual nature of conservatism and variability in mitochondrial 16s rrna gene ; ( 3 ) five primers generate the species - speeific rapd sites and these sites can be served as the molecular markers for species identification and ( 4 ) it can be proved at dna variation level that t. lepturus and e. muticus are of two species respectively pertainiag to different genera, which supported the nelson taxonomic conclusion

    分析結果表明: （ 1 ） rapd技術研究黃海帶魚和小帶魚的遺傳多樣性具有較高的靈敏度和檢出率，帶魚的多態比例和遺傳多態度均較小帶魚的低; （ 2 ）線粒體165出兇a基因序列在分析兩物種遺傳變異時表現出保守和變異的雙重特性，種內變異極小而種間較大: （ 3 ） 5個隨機引物擴增出種特異的ra衛d帶，可作為種間分子鑒定標記; （ 4 ）研究證實帶魚和小帶魚是不同屬的兩個種，從而在分子水平上支持了nelson分類系統的觀點。
  16. Among them, euphausia pacifica, pseudeuphausia latifrons and p. sinica are dominant species that play a key role in the china sea. by means of the vertical slab polyacrylamide gel electrophoresis, genetic heterogeneity of three krill was investigated, in order to elucidate the genetic diversity and differentiation among them

    全世界海洋中磷蝦類近90種，中國近海磷蝦類迄今已記錄2科7屬47種，其中以太平洋磷蝦、長額磷蝦、寬額假磷蝦和中華假磷蝦為主要優勢種。
  17. In this study fourteen wild lespedeza germplasms were collected from beijing, shanxi and heilongjiang province in 2001 and 2002, and a nursary of these germplasms was established. genetic diversity of the lespedeza populations were studied at morphological. allozyme and rapd levels

    本研究以2001 - 2002年從北京、山西和黑龍江三個地區收集的14份野生胡枝子屬植物為材料，建立種質資源圃，從形態學標記、等位酶標記和rapd標記三個方面進行了胡枝子屬植物遺傳多樣性的研究。
  18. Seventeen important morphological characters were analysed to identify and evaluate genetic diversity of morphology of the lespedeza populations. fourteen vital morphological characters were studied using basic statistics, correlation analysis, factor analysis and cluster analysis. zymograms were analysed using eighteen alleles of seven allozymes

    對14個關健形態學性狀指標的平均值、方差、標準差、變異系數等基本統計分析表明，胡枝子屬植物不同種間以及種內居群間在這14個重要形態學性狀上的遺傳差異較大，變異系數達28 . 89 122 . 36 （全生育天數除外，變異系數為4 . 72 ） 。
  19. Genetic diversity and relationships among species of lonicera in gansu province

    忍冬屬植物的遺傳多樣性及其種間關系研究
  20. In this study, genetic diversity of various strains of spirulina platensis is analyzed with rapd molecular marker and antibiotics marker, the results are compared with their morphologic characters, aimed at constructing a more reasonable classification criterion and knowing more about the genetic background of spirulina. additionally, it is found that under the cultivated condition the linear filament can retransite to the normal curved one which is similar to original spiral filament

    本論文利用rapd分子標記及抗生素抗性標記分析了不同鈍頂螺旋藻品系的遺傳多態性，並與其形態學特徵進行了比較，以期建立更合理的螺旋藻分類方法及加深對螺旋藻遺傳背景的了解；同時，發現在養殖環境下變直藻絲體可以回變為正常螺旋形態的現象。
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